is a Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

ese judo

Judo

is a modern martial art and combat sport created in Japan in 1882 by Jigoro Kano. Its most prominent feature is its competitive element, where the object is to either throw or takedown one's opponent to the ground, immobilize or otherwise subdue one's opponent with a grappling maneuver, or force an...

ka. He is four times Asian champion and also won All-Japan Judo Championships

All-Japan Judo Championships

is a judo tournament held every year in Japan. The men's tournament is held in Nippon Budokan on April 29 and the women's tournament is held in Yokohama Cultural Gymnasium in April. The Kodokan and All-Japan Judo Federation sponsor the championship....

 in 1994 and 1997.

He is from Saitama Prefecture

Saitama Prefecture

is a prefecture of Japan located in the Kantō region of the island of Honshu. The capital is the city of Saitama.This prefecture is part of the Greater Tokyo Area, and most of Saitama's cities can be described as suburbs of Tokyo, to which a large amount of residents commute each day.- History...

 and began judo at the age of a seventh grader. After graduation from Nihon University

Nihon University

Nihon University is the largest university in Japan. Akiyoshi Yamada, the minister of justice, founded Nihon Law School in October 1889....

, He belonged to Sohgo Security Services. He was long time before retiring itself from the high school days, a rival of Naoya Ogawa

Naoya Ogawa

Naoya Ogawa is a Japanese former world judo champion, Olympic silver medalist, professional wrestler and mixed martial artist...

.

Konno also well known that he and Hidehiko Yoshida

Hidehiko Yoshida

is a Japanese gold-medalist judoka and retired mixed martial artist. He is a long time veteran of Japan's Pride Fighting Championships, competing in the light heavyweight and heavyweight divisions, also managing to fight in the semi-finals in the Pride 2003 Middleweight Grand Prix...

 quarrelled at the final of All-Japan Championships in 1994, for Konno's dangerous skills like Kanibasami and Joint lock

Joint lock

A Joint lock is a grappling technique involving manipulation of an opponent's joints in such a way that the joints reach their maximal degree of motion....

 (Movie).

As of 2010, Konno coaches judo at his alma mater, Nihon University.

Achievements

• 1986 - World Junior Championships (+95 kg) 2nd

- All-Japan Junior Championships (+95 kg) 2nd

- All-Japan University Championships (+95 kg) 2nd

• 1987 - All-Japan University Championships (+95 kg) 2nd
• 1989 - Pacific Rim Championships (+95 kg) 1st
• 1990 - Jigoro Kano Cup (Openweight) 2nd

- All-Japan Championships

All-Japan Judo Championships

is a judo tournament held every year in Japan. The men's tournament is held in Nippon Budokan on April 29 and the women's tournament is held in Yokohama Cultural Gymnasium in April. The Kodokan and All-Japan Judo Federation sponsor the championship....

 (Openweight only) 3rd

- All-Japan Selected Championships (+95 kg) 3rd

• 1991 - Asian Championships
  Asian Judo Championships
  Asian Judo Championships is the Judo Asian Championship organized by the Judo Union of Asia.The men's tournament began in 1966 and was held approximately every four years, until 1991, when it became an annual event The women's tournament was first staged in 1981, and it has been held with the...
  
   (Openweight) 1st

- All-Japan Championships (Openweight only) 2nd

- All-Japan Selected Championships (+95 kg) 3rd

• 1993 - Asian Championships (Openweight) 1st

- All-Japan Championships (Openweight only) 2nd

- All-Japan Selected Championships (+95 kg) 3rd

• 1994 - Asian Games
  Asian Games
  The Asian Games, officially known as Asiad, is a multi-sport event held every four years among athletes from all over Asia. The Games were regulated by the Asian Games Federation from the first Games in New Delhi, India, until the 1978 Games. Since the 1982 Games they have been organised by the...
  
  (+95 kg) 1st

- All-Japan Championships (Openweight only) 1st

• 1995 - Kodokan Cup (+95 kg) 2nd
• 1996 - All-Japan Championships (Openweight only) 5th
• 1997 - Asian Championships (+95 kg) 1st

- All-Japan Championships (Openweight only) 1st

• 1998 - All-Japan Championships (Openweight only) 5th

- Kodokan Cup (+100 kg) 1st

• 1999 - Jigoro Kano Cup (+100 kg) 7th

- All-Japan Championships (Openweight only) Loss

• 2000 - All-Japan Selected Championships (+100 kg) 3rd